For the study of the quadratic multiparametric families described by (REF ) where we use different topics studied in [1]},[2]},[3]} and [4]}. Then, we find the critical points associated with each quadratic family and analyzing their stability in both the finite and infinite planes, also we present a deeper study study determined by regions to see the changes in stability of the critical points and from here analyze bifurcations presented in some families. Finally, we used software like [4]} and [6]} for the detailed construction of the behaviors by means of the global phase portrait associated with each quadratic multiparametric family.
